disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
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@@ -1,10 +1,8 @@
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-/*
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- * aQuantia Corporation Network Driver
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- * Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
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+/* SPDX-License-Identifier: GPL-2.0-only */
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+/* Atlantic Network Driver
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  *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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+ * Copyright (C) 2014-2019 aQuantia Corporation
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+ * Copyright (C) 2019-2020 Marvell International Ltd.
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  */
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 /* File aq_ring.h: Declaration of functions for Rx/Tx rings. */
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@@ -17,13 +15,20 @@
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 struct page;
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 struct aq_nic_cfg_s;
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+struct aq_rxpage {
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+	struct page *page;
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+	dma_addr_t daddr;
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+	unsigned int order;
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+	unsigned int pg_off;
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+};
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+
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 /*           TxC       SOP        DX         EOP
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  *         +----------+----------+----------+-----------
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  *   8bytes|len l3,l4 | pa       | pa       | pa
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  *         +----------+----------+----------+-----------
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  * 4/8bytes|len pkt   |len pkt   |          | skb
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  *         +----------+----------+----------+-----------
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- * 4/8bytes|is_txc    |len,flags |len       |len,is_eop
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+ * 4/8bytes|is_gso    |len,flags |len       |len,is_eop
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  *         +----------+----------+----------+-----------
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  *
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  *  This aq_ring_buff_s doesn't have endianness dependency.
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@@ -31,27 +36,21 @@
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  */
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 struct __packed aq_ring_buff_s {
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 	union {
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+		/* RX/TX */
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+		dma_addr_t pa;
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 		/* RX */
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 		struct {
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 			u32 rss_hash;
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 			u16 next;
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 			u8 is_hash_l4;
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 			u8 rsvd1;
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-			struct page *page;
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+			struct aq_rxpage rxdata;
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+			u16 vlan_rx_tag;
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 		};
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 		/* EOP */
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 		struct {
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 			dma_addr_t pa_eop;
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 			struct sk_buff *skb;
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-		};
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-		/* DX */
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-		struct {
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-			dma_addr_t pa;
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-		};
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-		/* SOP */
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-		struct {
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-			dma_addr_t pa_sop;
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-			u32 len_pkt_sop;
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 		};
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 		/* TxC */
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 		struct {
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@@ -62,22 +61,26 @@
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 			u8 is_ipv6:1;
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 			u8 rsvd2:7;
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 			u32 len_pkt;
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+			u16 vlan_tx_tag;
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 		};
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 	};
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 	union {
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 		struct {
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-			u16 len;
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+			u32 len:16;
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 			u32 is_ip_cso:1;
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 			u32 is_udp_cso:1;
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 			u32 is_tcp_cso:1;
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 			u32 is_cso_err:1;
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 			u32 is_sop:1;
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 			u32 is_eop:1;
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-			u32 is_txc:1;
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+			u32 is_gso_tcp:1;
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+			u32 is_gso_udp:1;
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 			u32 is_mapped:1;
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 			u32 is_cleaned:1;
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 			u32 is_error:1;
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-			u32 rsvd3:6;
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+			u32 is_vlan:1;
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+			u32 is_lro:1;
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+			u32 rsvd3:3;
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 			u16 eop_index;
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 			u16 rsvd4;
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 		};
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@@ -86,14 +89,22 @@
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 };
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 struct aq_ring_stats_rx_s {
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+	struct u64_stats_sync syncp;	/* must be first */
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 	u64 errors;
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 	u64 packets;
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 	u64 bytes;
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 	u64 lro_packets;
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 	u64 jumbo_packets;
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+	u64 alloc_fails;
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+	u64 skb_alloc_fails;
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+	u64 polls;
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+	u64 pg_losts;
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+	u64 pg_flips;
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+	u64 pg_reuses;
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 };
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 struct aq_ring_stats_tx_s {
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+	struct u64_stats_sync syncp;	/* must be first */
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 	u64 errors;
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 	u64 packets;
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 	u64 bytes;
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@@ -103,6 +114,11 @@
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 union aq_ring_stats_s {
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 	struct aq_ring_stats_rx_s rx;
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 	struct aq_ring_stats_tx_s tx;
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+};
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+
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+enum atl_ring_type {
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+	ATL_RING_TX,
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+	ATL_RING_RX,
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 };
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 struct aq_ring_s {
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@@ -116,8 +132,10 @@
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 	unsigned int size;	/* descriptors number */
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 	unsigned int dx_size;	/* TX or RX descriptor size,  */
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 				/* stored here for fater math */
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+	unsigned int page_order;
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 	union aq_ring_stats_s stats;
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 	dma_addr_t dx_ring_pa;
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+	enum atl_ring_type ring_type;
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 };
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 struct aq_ring_param_s {
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@@ -125,6 +143,16 @@
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 	unsigned int cpu;
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 	cpumask_t affinity_mask;
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 };
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+
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+static inline void *aq_buf_vaddr(struct aq_rxpage *rxpage)
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+{
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+	return page_to_virt(rxpage->page) + rxpage->pg_off;
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+}
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+
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+static inline dma_addr_t aq_buf_daddr(struct aq_rxpage *rxpage)
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+{
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+	return rxpage->daddr + rxpage->pg_off;
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+}
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 static inline unsigned int aq_ring_next_dx(struct aq_ring_s *self,
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 					   unsigned int dx)
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@@ -147,7 +175,7 @@
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 				   struct aq_nic_s *aq_nic,
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 				   unsigned int idx,
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 				   struct aq_nic_cfg_s *aq_nic_cfg);
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-int aq_ring_init(struct aq_ring_s *self);
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+int aq_ring_init(struct aq_ring_s *self, const enum atl_ring_type ring_type);
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 void aq_ring_rx_deinit(struct aq_ring_s *self);
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 void aq_ring_free(struct aq_ring_s *self);
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 void aq_ring_update_queue_state(struct aq_ring_s *ring);
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@@ -160,4 +188,11 @@
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 		     int budget);
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 int aq_ring_rx_fill(struct aq_ring_s *self);
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+struct aq_ring_s *aq_ring_hwts_rx_alloc(struct aq_ring_s *self,
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+		struct aq_nic_s *aq_nic, unsigned int idx,
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+		unsigned int size, unsigned int dx_size);
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+void aq_ring_hwts_rx_clean(struct aq_ring_s *self, struct aq_nic_s *aq_nic);
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+
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+unsigned int aq_ring_fill_stats_data(struct aq_ring_s *self, u64 *data);
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+
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 #endif /* AQ_RING_H */